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Galileo's instrument was the first to be given the name "telescope". The name was invented by the Greek poet/theologian Giovanni Demisiani at a banquet held on April 14, 1611, by Prince Federico Cesi to make Galileo Galilei a member of the Accademia dei Lincei. [43]
A claim will be made 37 years later by another Dutch spectacle-maker that his father, Zacharias Janssen, invented the telescope. [17] A replica of Galileo's telescope. 1609 — Galileo Galilei makes his own improved version of Lippershey's telescope, calling it a "perspicillum".
1732 – Indian observatories of Sawai Jai Singh at Varanasi, Ujjain, Mathura, Madras. 1733 – Chester Moore Hall invents the achromatic lens refracting telescope. 1734 – Indian observatory of Sawai Jai Singh at Jaipur. 1753 – Real Observatorio de Cádiz (Spain) 1753 – Vilnius Observatory at Vilnius University, Lithuania.
Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642), commonly referred to as Galileo Galilei (/ ˌ ɡ æ l ɪ ˈ l eɪ oʊ ˌ ɡ æ l ɪ ˈ l eɪ /, US also / ˌ ɡ æ l ɪ ˈ l iː oʊ-/; Italian: [ɡaliˈlɛːo ɡaliˈlɛːi]), was an Italian (Florentine) [a] astronomer, physicist and engineer, sometimes described as a polymath.
Galileo Galilei (1564–1642) crafted his own telescope and discovered that the Moon had craters, that Jupiter had moons, that the Sun had spots, and that Venus had phases like the Moon. Portrait by Justus Sustermans. Galileo Galilei was among the first to use a telescope to observe the sky, and after constructing a 20x refractor telescope. [83]
Galileo was able to look at the night sky with the newly invented telescope. He published his observations that Jupiter is orbited by moons and that the Sun rotates in his Sidereus Nuncius (1610) [112] and Letters on Sunspots (1613), respectively.
A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. [1] Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope. Nowadays, the word "telescope" is defined as a wide range of ...
Galileo Galilei, the discoverer of the four moons. As a result of improvements that Galileo Galilei made to the telescope, with a magnifying capability of 20×, [5] he was able to see celestial bodies more distinctly than was previously possible. This allowed Galileo to observe in either December 1609 or January 1610 what came to be known as ...